* and converting XContent objects to different output formats.
 */
public final class SearchEngineUtil {

    private static final Logger logger = LogManager.getLogger(SearchEngineUtil.class);

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private SearchEngineUtil() {
    }

    /**

        OutputStream result = SearchEngineUtil.getXContentBuilderOutputStream(callback, XContentType.JSON);
        assertNotNull(result);
    }

    public void test_utility_class_instantiation() {
        // Verify that SearchEngineUtil is a utility class with private constructor
        try {
            SearchEngineUtil.class.getDeclaredConstructor().newInstance();

import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;
import org.lastaflute.web.response.StreamResponse;

/**
 * API action for admin backup.
 *
 */

import java.util.Locale;
import java.util.Set;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.cluster.health.ClusterHealthStatus;

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.GsaConfigParser;
import org.codelibs.fess.util.RenderDataUtil;
import org.codelibs.fess.util.ResourceUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.lastaflute.core.magic.async.AsyncManager;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;

import org.codelibs.fess.mylasta.direction.FessConfig.SimpleImpl;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import org.codelibs.fess.query.QueryFieldConfig;
import org.codelibs.fess.util.BooleanFunction;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocMap;
import org.codelibs.fess.util.SearchEngineUtil;
import org.codelibs.fess.util.SystemUtil;
import org.codelibs.opensearch.runner.OpenSearchRunner;
import org.codelibs.opensearch.runner.OpenSearchRunner.Configs;
import org.dbflute.exception.IllegalBehaviorStateException;